题目内容

She’s already two hours late. What ______ to her?


  1. A.
    can have happened
  2. B.
    may have happened
  3. C.
    should have happened
  4. D.
    must happen
A
can表推测，只用于否定句和疑问句中。
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相关题目

Mistakes will happen. Accept _________ and learn from ________


  1. A.
    it; them
  2. B.
    them; it
  3. C.
    it; it
  4. D.
    them; them

I heard that some patients who had undergone laser eye surgery experienced sudden losses of vision, ______?


  1. A.
    didn’t I
  2. B.
    hadn’t they
  3. C.
    didn’t they
  4. D.
    isn’t it

I hope that my father will quit smoking because I want him to live__________ my grandpa does


  1. A.
    as a long and healthy life as
  2. B.
    as long and healthy a life as
  3. C.
    such long and healthy a life as
  4. D.
    so long and healthy a life as

______I used to go mountain—climbing every summer .


  1. A.
    at a time
  2. B.
    at one time
  3. C.
    At times
  4. D.
    At the same time

I told him that if painting was important for him he would live on bread in order to ______ .


  1. A.
    succeed
  2. B.
    success
  3. C.
    succeeding
  4. D.
    to success

The question _____ at tomorrow’s meeting is of great importance.


  1. A.
    to discuss
  2. B.
    being discussed
  3. C.
    to be discussed
  4. D.
    discussed

The boy was observed __________ basketball at eight o’clock yesterday.


  1. A.
    playing
  2. B.
    play
  3. C.
    to play
  4. D.
    having played

However busy we are, we need to take exercise. Not only___________us keep healthy, it also stops us getting fat.


  1. A.
    it helps
  2. B.
    helps it
  3. C.
    it does help
  4. D.
    does it help

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